- Grant Gustin (Barry Allen / The Flash)
- Candice Patton (Iris West-Allen)
- Danielle Panabaker (Khione)
- Danielle Nicolet (Cecile Horton)
- Kayla Compton (Allegra Garcia)
- Brandon McKnight (Chester P. Runk)
- Jon Cor (Mark Blaine / Chillblaine)
The Flash — S0E22
Episode: Heart and Heat: The Story of Firestorm
Air Date: 2015-10-27
Runtime: 5 min
Overview
The tragic history of the character who's all heart. Season 2 featurette.